Boeing 787 Dreamliner Diverted over Oil Filter Problem

Duncan Chard/Bloomberg via Getty Images(SEATTLE) — A month after returning to the skies, a Boeing 787 Dreamliner had to be diverted on Tuesday for repairs.

United flight 139, which was en route to Tokyo from Denver, was forced to land in Seattle over “an indication of a problem with an oil filter,” United Airlines said in a statement.

The plane landed normally and without incident, the carrier added.

In a statement, Boeing said it was aware of the incident and “we are engaged with United to provide any support required. We are aware that this is an engine issue and we are coordinating with GE.”

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Tuesday’s mishap comes after Boeing’s fleet of 787 Dreamliners resumed flying after being grounded in January due to problems with its lithium-ion battery system.

In one incident, a lithium ion battery caught fire on a Japan Airlines flight parked at Boston’s Logan Airport. In another, smoke from a battery system on an All Nippon Airways flight in Japan forced an emergency landing.

U.S. and Japanese regulators responded by grounding all 50 Dreamliners while an investigation into the batteries took place and changes to the system were made.